Box-nailing machine.



No. 778,468. PATE NTED DEG. 2'7. 1904. D. SNITJER BOX NAILING MACHINE.

APPLICATION FILED JULY 25, 1904.

in 7 Zfl 4 m 4mm M UNITED STATES Patented December 27, 1904.

DRIKUS SNITJER, OF CUPERTINO, CALIFORNIA.

BOX-NAlLlNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 778,463, dated December27, 1904.

Application filed July 25, 1904. Serial No. 217,927.

To all whrmt it may concern.-

Be it known that I, DRIKUS SNITJER, a citizen of the United States,residing at Copertino, in the county of Santa Clara and State ofCalifornia, haveinvented certain new and useful Improvements inBox-Nailing Machines, of which the following is a specification.

My invention relates to improvements in box-nailing machines, the objectof the improvements being to provide means for supporting and holding abox so that the parts to be nailed shall be at the proper levelrelatively to the machine for the driving of the nail thereinto.

It often happens that one end of a box is slightly higher than the otherend, and in consequence with the present style of machines if themachine be adjusted to the proper height for one end of the box it istoo high or too low for the other end, so that the nail is notsufliciently driven in the box or is driven too far or entirely throughthe wood of the cover of the box if said cover be thin. In orangeboxes,again, which have a partition in the middle this partition and the endsof the box are seldom placed with the grain of the wood running the sameway and their top edges are therefore nearly always on different levels.

The object of the present invention is to provide improvements whichwill permit of the nails being driven in to the proper depthnotwithstanding this difference in the heights of the ends of the box.

My invention therefore resides in the novel construction, combination,and arrangement of parts for the above ends hereinafter fully specified,and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective view of aportion of a box-nailing machine embodying my improvement. Fig. 2 is avertical section of the same. Fig. 3 is a detail side view of theparallelizing-bar. Fig. a is a similar view of the nail-punch. Fig. 5 isa detail plan view of the guide.

In the drawings I have illustrated the invention applied to what isknown as the Doig box nailing machine covered by United States PatentNo. M2368, granted to W. S. Doig. In this machine there is a frame 1,supporting a table 2, upon which the box is placed for the purpose ofnailing the same. 3 represents the chutes for the nails discharging intothe nail-chucks 4. 5 represents the nail-punches reciprocating in saidchucks 4:, carried by heads 6, having tenons 7, in a grooved cross-head8, extending transversely of the machine.

All of the above is old in the art and forms no part of my presentinvention.

Above the table 2 is a false bottom or table 9, supported by springs 10,which in the present instance 1 have shown as being made of rubber,although they may also be stiff coiled springs, and upon this falsebottom 9 is set the box to be nailed. These springs are of suchelasticity that either end can be depressed to the depth of aboutone-eighth of an inch, which will in all cases be found sufficient tocounterbalance the inequality in the heights of the box ends. Upon thecrosshead 8, which supports the nail-punches, are also hung a pair ofparallelizer-bars 11, each having a head 12 with a teuon 13, as shown,engaging the same groove as is engaged by the tenons 7 in thepunch-heads. There are two of these bars, one adjacent to each of theend nail-chucks of the series and located on the inner side of said endnail-chucks, so as to come above the top of the box which is to benailed. These paralleliZer-bars are of precisely the same length as thenail-punches themselves, so that when the cross-head 8 is depressed inthe operation of the machine said paralleliZer-bars are brought downupon the top of the box, and if either end be higher than the other itis pressed down to the same level as the other end. The box is thus helddown by said parallelizers, so that the top of the box is exactly levelrelatively to the punches, and the nails are therefore driven by saidpunches to precisely the same depth at both ends of the box. Theintermediate nails are also driven to the same level, since the box doesnot bend between its ends. The springsupports for the false bottom aresufiiciently unyielding to resist the downward pressure of the punchesand permit of the nails to be driven into the box, while at the sametime they yield sufficiently to allow the top of the box to be broughtto an absolute level relatively to the machine.

15 represents guides secured to the nailchucks and guiding theparallelizer-bars in their vertically-reciprocating movement.

I claim 1. In a box-nailing machine, in combination with a series ofguideways for the nails, and a series of punches for driving the nails,a support for the box, and means moving with the punches, forparallelizing the top of the box with the row of punches, substantiallyas described.

52. In a box-nailing machine, in combination with a series of guidewaysfor the nails, and a series of punches for driving the nails, a supportfor the box, and paralleliZer-bars, arranged, in the movement of themachine, to impinge upon the top of the box and parallelize it with theseries of punches, substantially as described.

3. In a box-nailing machine, in combination with a series of guidewaysfor the nails, and a series of punches for driving the nails, a supportfor the box, and paralleliZer-bars, moving with the punches and arrangedto impinge upon the top of the box to parallelize it with the series ofpunches, substantially as described.

4. In a box-nailing machine, in combination with a series of guidewaysfor the nails, and a series of punches for driving the nails, a yieldingsupport for the box, and automaticallyoperated means for parallelizingthe top of a box, placed upon said support, with the series of punches,substantially as described.

5. In a box-nailing machine, in combination with a series of guidewaysfor the nails, and a series of punches for driving the nails, a yieldingsupport for the box, and devices engaging the top of a box placed uponsaid support, and adjacent to the terminal punches, said devices beingautomatically moved with the punches to parallelize the top of the boxwith said punches, substantially as described.

6. In a box-nailing machine, in combination with a series of guidewaysfor the nails, and a series of punches for driving the nails, a yielding support for the box, parallelizer-bars moving with the punches, thelower ends of said bars being arranged to engage the top of a box placedon said support, and guides for said bars in theirverticallyreciprocating movement, substantially as described.

In witness whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

DRIKUS SNITJER.

Witnesses:

FRANCIS M. WRIGHT, BESSIE GoRrINKnL.

